I'm having a similar issue on a T480 with a discrete Nvidia Geforce MX150 and Intel UHD Graphics 620
Recently updated to Xubuntu 24.04 from 22.04 and now after a random amount of time purple lines appear from the bottom of the screen and then it goes black, similar to this Reddit post - https://www.reddit.com/r/thinkpad/s/KM38RtoCOo If I leave it until the display goes to sleep and then wake it, it recovers. If I attempt to interact with it, I have to force a reboot. Not doing anything specific when it happens, sometimes just streaming. Happens both connected to AC power and not The only thing I can see that could be related in the logs is *ERROR* CPU pipe A FIFO underrun in syslog Added intel_iommu=igfx_off to GRUB_CMDLINE_LINUX_DEFAULT - will post again if that doesn't resolve the issue -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2062951 Title: Random flickering with Intel i915 (Gen9 GPUs) on Linux 6.8 (Ubuntu 24.04) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/2062951/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
